[1A08-1A10] CO2 recovery/conversion(3)

1:15 PM - 1:30 PM JST(4:15 AM - 4:30 AM UTC)Japanese

[1A09] A system for the capture and release of low-concentration carbon dioxide using amine solid-liquid phase change.

○LI XUANBING¹, Kikkawa Soichi¹, Kawasoko Hideyuki^1,2, Yamazoe Seiji¹ (1. Tokyo Metropolitan University, 2. Japan Science and Technology Agency PRESTO)

Keywords:

Direct air capture,Amine absorbent,low concentration of carbon dioxide

Direct air capture (DAC) system is a promising technique to capture already emitted CO₂ for reducing atmospheric CO₂ concentration. In particular, the solid-liquid phase separation type of amine absorbent, which captures CO₂ as a solid deposit, has attracted attention because of highly efficient reaction rate with low-concentration CO₂.In this study, we developed a CO₂ absorption system based on gas-liquid contact between diamine and low-concentration CO₂ gas to achieve highly dense CO₂ capture.